Elspec EQUALIZER-ST, Руководство пользователя и инструкция по установке, Страница: 69 / 121

69
www.elspec-ltd.com | December 2014 | SMX-0609-0101
User Manual | EQ-ST | V15
Groups
Explanation
1 2 2 2
Command
   
Initial State
IN
   
The 1
st
group (one step) is connected.
IN


 
1+1=2 steps. The 1
st
group is disconnected and the 2
nd
is connected.
IN
   
2+1=3 - both 1
st
group (1 step) and 2
nd
group (2 steps) are connected.
IN

 

3+1=4 2
nd
and 3
rd
groups are connected (2 steps each).
OUT
   
4-1=3 - the 2
nd
group, the earlier connected 2-step group disconnects.
OUT
 


3-1=2 the 1
st
group disconnects.
OUT
   
2-1=1 - the 2-step group disconnects, while the 1
st
group connects.
IN
  

1+1=2 the 2-step group that wasn't used yet connects.
Legend:

Group Connected

Group Disconnected
Figure 78: Capacitor Groups In/Out Sequence Example
M
ODE FUNCTION
Use F1 (Mode) from measurement mode window, to activate the MODE function. The system will immediately
disconnect all the groups, regardless of the mode of operation. This function is therefore useful for fast system
disabling. Pressing F1 (Mode) will display the screen shown in Figure 79. Note that if the "Site Installation"
procedure has not been completed yet, a warning message will be displayed to prompt you to run the "Site
Installation" procedure.
In "Automatic" mode, the system monitors the power factor and connects or disconnects capacitor groups as
required to adjust the power factor to the programmed value (the programmed value and the compensation
mode are displayed on this screen).
In "Manual" mode, the operator controls the connection or disconnection of groups manually.
The "Perform System Test" function enforces a self-test. On test completion, a Group Test Report is displayed (see
Figure
88
on Page 80) and the system returns to its previous mode (Automatic or Manual).